﻿using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

namespace LCL.Config
{
    /// <summary>
    /// DbConfig配置管理类
    /// </summary>
    public partial class DbConfigFileManager : DefaultConfigFileManager
    {
        private static DbConfigInfo m_configinfo;
        /// <summary>
        /// 文件修改时间
        /// </summary>
        private static DateTime m_fileoldchange;
        /// <summary>
        /// 初始化文件修改时间和对象实例
        /// </summary>
        static DbConfigFileManager()
        {
            Path.GetPathRoot(ConfigFilePath).CreateDir();
            if (ConfigFilePath.FileExists())
            {
                m_fileoldchange = System.IO.File.GetLastWriteTime(ConfigFilePath);
                m_configinfo = (DbConfigInfo)DefaultConfigFileManager.DeserializeInfo(ConfigFilePath, typeof(DbConfigInfo));
            }
        }
        /// <summary>
        /// 当前的配置类实例
        /// </summary>
        public new static IConfigInfo ConfigInfo
        {
            get { return m_configinfo; }
            set { m_configinfo = (DbConfigInfo)value; }
        }
        /// <summary>
        /// 配置文件所在路径
        /// </summary>
        public static string filename = null;
        /// <summary>
        /// 获取配置文件所在路径
        /// </summary>
        public new static string ConfigFilePath
        {
            get
            {
                if (filename == null)
                {
                    filename = Utils.GetMapPath("~/config/DbSetting.config");
                }
                return filename;
            }
        }
        /// <summary>
        /// 返回配置类实例
        /// </summary>
        /// <returns></returns>
        public static DbConfigInfo LoadConfig()
        {
            if (ConfigFilePath.FileExists())
            {
                ConfigInfo = DefaultConfigFileManager.LoadConfig(ref m_fileoldchange, ConfigFilePath, ConfigInfo);
                return ConfigInfo as DbConfigInfo;
            }
            else
            {
                Logger.Warn("db config:"+ ConfigFilePath);
                return null;
            }
        }
        /// <summary>
        /// 保存配置类实例
        /// </summary>
        /// <returns></returns>
        public override bool SaveConfig()
        {
            return base.SaveConfig(ConfigFilePath, ConfigInfo);
        }
    }
}
